sx1441 Semtech Corporation, sx1441 Datasheet - Page 65

• Manufacturer Part Number: sx1441
• Description: Bluetooth V1.2 Soc For Voice And Data Applications With Dsp Capabilities
• Manufacturer: Semtech Corporation

Personal Area Network
© Semtech 2006
Pos
3
2
1
0
Pos
7:4
3
2
1
0
Pos
7:3
2
1:0
Pos
7:2
1
0
RegCodecDataFlow
-
DmaWriteSource
PcmSource
DacSource
-
RegAdcGain
-
PreampDisable
PreampGain
RegCodecPaMute
-
PaMuteP
PaMuteN
RegDmaCtrl
DmaReadFull
DmaWriteFull
DmaReadEnable
DmaWriteEnable
Table 125 - RegCodecDataFlow register
Table 127 - RegCodecPaMute register
r/w
r
r
rw
rw
r/w
r
rw
rw
rw
r
r/w
r
rw
rw
r/w
r
rw
rw
Table 126 - RegADCGain register
Table 124 - RegDmaCtrl register
Reset
0
0
0
0
Reset
0000
0
0
0
0
Reset
00000
0
00
Reset
000000
0
0
65
Function
channel address counter
set to 1 when the DMA read channel address
counter reaches DmaReadStopAddr[15:0]
set to 1 when the DMA write channel address
counter reaches DmaWriteStopAddr[15:0]
1 = enable DMA read channel
0 = disable DMA read channel
1 = enable DMA write channel
0 = disable DMA write channel
Function
Reserved
1 = select PCM interface as DMA write channel
source
0 = select ADC as DMA write channel source
1 = select DMA read channel as PCM interface
source
0 = select ADC as PCM interface source
1 = select DMA read channel as DAC source
0 = select PCM interface as DAC source
Reserved
Function
Reserved
1 = disable ADC preamplifier
0 = enable ADC preamplifier
Select ADC preamplifier gain
11 = gain x20
10 = gain x10
01 = gain x5
00 = preamplifier bypassed
Function
Reserved
1 = force pin PA_OUTP to ground
1 = force pin PA_OUTN to ground
SX1441 – Bluetooth® 1.2 SoC
www.semtech.com
Data Sheet